WOW, got in on this one late. Major Depression, Moderate, recurrent. I tried going off my Effexxor after an ill informed paster preached about depression medicine. Did fine for a while, but got to where I could not think. My GP made the connection and put me back on Effexxor. I will be on it the rest of my life.
Some of us have real chemical problems that are beyond our control. Period. Depression can be real and chemical, not evil and not sin!
With all that said, I do much better if I ride 3-4 times a week. Just 10-12 miles is all I need.
Stay here, ride and read. I posted about the only time I don't hurt is on the bike, and someone's response made my problems look silly.
Point, is, you do what you can, and keep doing it. Some one will do it better and/or faster. So what? What ever you can do on a bike is much better that being a couch potato!